:salamext:
Allah is as you think of Him. If you think He's going to help you and give you the best in this life and the next then that's how He's going to treat you. If you're pessimistic and negative and think that Allah will won't help you then He'll make your circumstances as badly as you thought of Him.
However, I will also point the following verse:
"...But perhaps you hate a thing and it is good for you; and perhaps you love a thing and it is bad for you. And Allah Knows, while you know not." (2:216)
If Allah has plans for you to be a pro goalkeeper then nothing will stand in your way and stop you. If Allah has other plans for you then don't lose trust in Him as He knows what's good for you and what isn't. Be patient, make du'aa and trust Allah. Whatever He does for you is good for you even if you can't see it right now.